[Bug tree-optimization/79090] [7 regression] DSE wrongly removes store at variable offset

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79090

--- Comment #5 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Mon Jan 16 23:43:05 2017
New Revision: 244509

URL: https://gcc.gnu.org/viewcvs?rev=244509&root=gcc&view=rev
Log:
2017-01-16  Jeff Law  <l...@redhat.com>

        PR tree-optimization/79090
        PR tree-optimization/33562
        PR tree-optimization/61912
        PR tree-optimization/77485
        * tree-ssa-dse.c (compute_trims): Accept STMT argument.  Dump STMT
        and computed trims into the dump file.

        PR tree-optimization/79090
        PR tree-optimization/33562
        PR tree-optimization/61912
        PR tree-optimization/77485
        * tree-ssa-dse.c (compute_trims): Accept STMT argument.  Dump STMT
        and computed trims into the dump file.

Added:
    trunk/gcc/testsuite/g++.dg/tree-ssa/ssa-dse-2.C
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-29.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-dse.c